Pressure-regulating valve.



No. 726,355. x PATENTED APE. 28, 1903.

J. ,GI SGHAEEER. PRESSURE REGULATING VALVE.

APPLICATION FILED MAR. 18, 1902.

VN0 MODEL. 4 2 SHEETS-SHEET 1.

WWI/f ff WITNESSES z Norms menseomnof uw w 1 PATENTED APR. 28, 1903.1

J. C. SCHAEFER.` PRESSURE REGULATING VALVE.

APPLICATION FILED MAB.. J8. 1902.

2 SHEETS-SHEET 2.

No MODEL.

INVENTOR WITNESSES rrrrnn iirrrrns JOHN C.

Parleur @rinsing SCHAEFER, OF NEVLTORK, N. Y.

liiilSUR-EMREGULATING VALVE.

SPEGIFIGATION forming part of Letters Patent No. '726,35 5, dated April.28, 1903.

Application filed March 18, 1902. Serial No. 98,765. (No model.)

T0 @ZZ 7.072.071@ t nuty/ concern,.-

Be it known that I, JOHN C. SGHAEFER, a citizen of theUnitedStates,residiug in the city of New York, county and State of New York,have invented certain new and useful Improvements in Pressure-RegulatingValves; and I do hereby declare the following to be a full, clear, andexact description ofthe invention, such as will enable others skilled inthe art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to 'figures of reference markedthereon, which form apart of this specification.

This invention relates to a pressure-regulating valve, easily adjusted,that allows of a quick escape and a prompt reclosing when the pressurefalls to the adjusted limit. The device is applicable to all uses towhich valves of this class are put, but is particularly adapted to caskscontaining fermenting extracts, and more particularly to casks inbreweries.

In the manufacture of beer, rbc., the first fermentation takes place inopen vats, and after the necessary time has elapsed young beer and yeastare added, and this or kraeusen beer is placed into closed tanks andsealed, and as the beer ferments certain pressures must be maintained,and to maintain these this valve is devised.

In the drawings, Figure 1 is a side elevation, and Fig. 2 a section online 2 2 in Figfl. Fig. 3 is a plan with the cap removed, and Fig. 4 isa perspective of the valve-stem.

In the drawings, 10 is a casing inclosing in connection with the web 11an auxiliary chamber 12, and screwed into this web is the valve-seat andgasketholdin g nipple 13. The gasket 14 rests on the web. On the casing10 is screwedV a cap 15, which is provided with a sleeve 1G, which inturn receives the valvestem 17. This stem has a shoulder which receivesthe pressure of a spring 18, the other end of the spring bearing againsta pressureregulating sleeve 1S), and when adjusted this sleeve is heldby the screw 20, as will be evident. The end of the valve-stem 17 isenlarged beyond the diameter of the valve-seat 13 and provided with aconcavity which forms a chamber 2l, the circumferential edge resting onthe gasket, as in Fig. 2 and the dotted lines in Fig. 3. The casing isscrewed onto a two-way valve 23, provided with the cocks 24 and 25, theuses of which will be described hereinafter.

The device, as shown, is screwed by means of the valve 23, so that thecock 24 is between the cask and the pressure-regulating valve. When thecask or vat is filled, the cock 24 is opened and the cock 25 is closed.By screwing the sleeve 19 the pressure predetermined can be maintainedand the spring keeps the valve shut. As the beer or other liquorferm'ents the gases collect in the auxiliary chamber 12 and under thevalve-stem 17 in the small chamber 2l until the gases have enoughpressure to force the stem upward, which allows of a quick escape fromthe space 2l out through a suitable outlet 22, and the valve willimmediately close. When the beer, dac., has fermented sufficiently, thecock 24 can be closed, the cock 25 opened and connected with theair-pressure, when the beer can be racked off. Then the cask is relled,the cock 25 closed, 24 opened, and the valve is again operative. I havethus devised a valve of a simple form that can be easily adjusted andthat opens and allows of a quick escape of the gas and closes withcorresponding rapidity.

The auxiliary chamber and the small chamber formed under the stem of thevalve allow a collection of the gases, and as the valve opens acomparatively large area the pressure is relieved quickly, and this inturn allows of a corresponding replacement of the valve.

I have described the valve as adapted to vais in breweries, Snc.; but itmay be used in any way to which a valve of this cl1arac ter isapplicable.

Having thus described my invention, what I claim is 1. In apressure-regulating valve, a casing and web inclosing a chamber, aninlet there-v to, a gasket on said web, a perforated nipple screwed intothe web, and holding the gasket, a cap on the casing, an adjustablesleeve on said cap inclosing a spring-actuated valvestem, said stemhaving an enlarged lower end in engagement with the gasket, and anoutlet-pipe on said cap, substantially as set forth. A

2. A pressure-regulating valve, comprising ICO a chamber provided with aWeb, a perforated nipple holding a gasket on the upper side of 'the web,said nipple having a convex upper .concave to form a chamber between thenipple and the stem, substantially as set forth.

3. A pressure-regulating valve comprising a Chamber provided With a Webdividing it into two compartments, said Web having a perforation, agasket on said web having a perforation, a perforated nipple in said webscrewed into said perforations and olasping the gasket and Web together,a eavp on the easing, al1-adjustable sleeve on said cap inelosing aspring-actuated valve-stem, said stein having an enlarged concave lowerend in engagement on its edges with the gasket and bridging the nipple,van inlet-pipe leading to the lower compartment and an outletpipe fromthe upper compartment.

In testimony that I Claim the invention set forth above I have hereuntoset my hand this 2d day of January, 1902.

JOHN C. SCHAEFER.

Witnesses:

WM. H. CAMEIELD, Jr., LOUISE C. MULLER.

